WHEN YOU SHOULD SEE A DOCTOR
Back pain is incredibly common.
And if you’re over 50, there’s a pretty good chance you’ve experienced it.
Maybe you spent Saturday working in the yard and woke up Sunday barely able to put your socks on. Maybe you picked up a grandchild and felt something grab in your lower back. Or perhaps you simply got out of bed one morning and wondered what you possibly did while sleeping to make your back so angry.
Most of the time, back pain is uncomfortable, frustrating, and inconvenient—but not dangerous.
Most episodes improve with time, movement, and conservative treatment.
But not all back pain should be treated that way.
Occasionally, back pain is your body’s warning that something more serious may be happening.
The trick is knowing the difference.
So let’s talk about the red flags of back pain—the symptoms that should make you stop saying, “I’ll give it another week,” and start thinking, “Maybe I should have this checked.”
Red Flag #1: New Weakness in Your Leg
There’s an important difference between pain and weakness.
If your back hurts and pain shoots down your leg, you may have irritation of a nerve. That’s commonly called sciatica.
It can be miserable.
But now imagine that your foot suddenly doesn’t work normally.
You try to lift the front of your foot while walking and can’t. Your leg gives way. Or you suddenly have difficulty standing on your toes or heels.
That’s different.
New or progressive muscle weakness can mean a nerve is being significantly compressed or injured.
New weakness deserves medical evaluation—especially if it is getting worse.
Red Flag #2: Loss of Bladder or Bowel Control
This one is particularly important.
The nerves at the bottom of your spinal canal help control your legs, bladder, bowels, and sensation around the groin.
Rarely, these nerves can become severely compressed. This is called cauda equina syndrome.
Symptoms can include:
- New difficulty controlling your bladder
- Inability to urinate normally
- Loss of bowel control
- Severe or worsening weakness in the legs
- Numbness around the buttocks, groin, or inner thighs
Doctors sometimes call this area of numbness saddle anesthesia because it involves the part of your body that would touch a saddle.
If these symptoms suddenly develop along with significant back pain, seek emergency medical care.
This isn’t something to watch for a few days to see if it gets better.
Red Flag #3: Back Pain After Significant Trauma
Suppose you’re 25 and bump into a table.
That’s one thing.
Suppose you’re 75, have osteoporosis, fall backward, and develop significant back pain.
That’s another.
As our bones become weaker, particularly when osteoporosis is present, it takes less force to cause a fracture.
A spinal compression fracture can sometimes occur after what seems like relatively minor trauma.
Even coughing, twisting, or lifting can occasionally cause a fracture in someone with severely weakened bones.
If you’re older, have osteoporosis, take medications that weaken bones such as long-term corticosteroids, or have other significant fracture risks, new severe back pain following trauma deserves evaluation.
Red Flag #4: Fever With Back Pain
Your back hurts. You also have a fever. That’s a combination worth paying attention to.
Infections involving the spine are uncommon, but they can occur.
The concern becomes greater if you also have risk factors such as a weakened immune system, recent infection, recent spinal procedure, or certain other medical conditions.
This doesn’t mean every person with a cold and an aching back needs to rush to the emergency room.
We have to look at the whole picture.
But persistent or significant back pain accompanied by unexplained fever or chills should be medically evaluated.
Red Flag #5: Unexplained Weight Loss
I’ve said many times that losing weight can be beneficial if you’re carrying excess body fat.
But there is an important word in that sentence:
Trying.
If you’ve improved your diet, increased your activity, and intentionally lost 15 pounds, congratulations.
If you’ve changed absolutely nothing and unexpectedly lost 15 pounds, that’s different.
Unexplained weight loss can occasionally be associated with serious illnesses, including cancer or chronic infection.
Back pain plus significant unexplained weight loss doesn’t automatically mean something terrible is happening.
But it deserves investigation.
Red Flag #6: A History of Cancer
Many cancer survivors experience ordinary back pain for exactly the same reasons everyone else does.
Having had cancer doesn’t mean every ache represents a recurrence.
But it does change the threshold for evaluation.
Certain cancers can spread to the bones, including the spine.
If you have a history of cancer and develop new, persistent, or unexplained back pain, particularly if the pain is worsening or behaving differently from previous episodes, talk with your physician.
Your doctor may decide that imaging or additional testing is appropriate.
Red Flag #7: Pain That Doesn’t Behave Like Typical Mechanical Back Pain
Typical musculoskeletal back pain often changes with movement or position.
You bend over and it hurts. You stand up and it feels better. You sit too long and it gets stiff. You walk around and it loosens up.
There is usually some relationship between what you’re doing and what you’re feeling.
Pain that is severe, persistent, progressively worsening, or relatively unaffected by movement deserves more attention.
Night pain can also matter, particularly if it repeatedly wakes you from sleep and isn’t relieved by changing position.
Now, be careful here.
Lots of ordinary back pain can bother you at night.
So waking up because you rolled onto your sore back doesn’t automatically mean something dangerous is happening.
Again, we’re looking at the whole picture.
Red Flag #8: You’re Becoming Progressively Worse
One of the most useful things to ask yourself is:
What direction am I going?
Imagine your back started hurting five days ago.
Day one was terrible.
Day three wasn’t great.
But today you’re walking a little farther and getting out of your chair a little easier.
That’s encouraging.
Now imagine the opposite.
Each day the pain gets worse.
You can do less.
You’re developing new symptoms.
The pain is spreading.
That’s a different pattern.
Back pain that is progressively worsening rather than gradually improving deserves evaluation.
Red Flags Don’t Always Mean Something Dangerous
This point is important. A red flag isn’t a diagnosis. It’s a reason to look more closely.
Having unexplained weight loss doesn’t mean you have cancer.
Having a fever and back pain doesn’t automatically mean you have a spinal infection.
And having pain at night doesn’t mean something terrible is growing in your spine.
Red flags simply change the calculation.
They tell us:
This may not be routine back pain. We should investigate further.
That’s what good medicine is about—not frightening people, but recognizing when something deserves additional attention.
What About Back Pain Without Red Flags?
If your back hurts after gardening, lifting something, exercising, or simply moving the wrong way—and you don’t have any concerning symptoms—the research suggests that staying reasonably active is usually better than prolonged bed rest.
Walk. Move. Temporarily modify activities that significantly increase your symptoms. Gradually return to normal activity as you improve.
Your back is stronger than you may think.
And pain does not automatically mean damage.
Dr. Mike’s Prescription
Most back pain after 50 isn’t an emergency.
But remember these warning signs:
Seek medical attention for back pain associated with:
- New or worsening leg weakness
- Loss of bladder or bowel control
- Numbness around the groin or inner thighs
- Significant trauma, especially with osteoporosis
- Unexplained fever or chills
- Unexplained weight loss
- A history of cancer with new persistent pain
- Severe or progressively worsening symptoms
And remember one more thing.
You don’t need to diagnose yourself.
That’s what your healthcare professional is there for.
If something about your back pain seems different, unusual, or simply doesn’t feel right, it’s reasonable to get it checked.
I’d much rather have someone come in and discover that their back pain is nothing serious than stay home with something that shouldn’t have been ignored.
Most of the time, back pain is just back pain.
The important part is recognizing those uncommon times when it isn’t.
This article is for educational purposes and is not a substitute for evaluation, diagnosis, or treatment by your healthcare professional.